UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DtNgwQA1JNwwmFAWU3ja6ZxcPQXS0TflfsfQlRo4XSg=' 
WHERE 
  key_id = '50c968385f9e593002ac4b38a597edc957866be56d7fb211086600c3f02d84db' 
  AND (
    token = 'DtNgwQA1JNwwmFAWU3ja6ZxcPQXS0TflfsfQlRo4XSg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )